By analyzing and studying the old gray scale modulation driving circuit and the characteristics of low work function printable field emission display(FED)

a novel image restoration sub-row driving(SRD) technology was put forward. SRD technology can be applied to the display panel which does not have storage characteristic. Less buffer memory demand and higher display time usage ratio and so on can be obtained so that it is more suitable for FED panels driving. The working principle of the new image driving system and the execution method were introduced in detail. In order to satisfy the demand of the chip driving high-speed of the SRD method

some image data bits were reduced

while the application of error diffusion method was used to achieve true color image restoration. The technology had been successfully applied to FED driving system and developed a prototype color FED display. It can display color video images. Its diagonal is 63.5 cm(25 in)

brightness is 300 cd/m

2

and contrast ratio is 800 : 1.